A271583 Magic sums of 4 X 4 magic squares composed of squares of primes.

509020, 736300, 860932, 1368340, 2431780

Offset: 1

Author

Arkadiusz Wesolowski, Apr 10 2016

Keywords

• nonn
• more

Examples

			Examples of 4 X 4 magic squares composed of squares of primes.
.
|-----|-----|-----|-----|
| 29^2| 71^2|277^2|653^2|
|-----|-----|-----|-----|
|191^2|647^2|211^2| 97^2|
|-----|-----|-----|-----|
|673^2|139^2|163^2|101^2|
|-----|-----|-----|-----|
|137^2|257^2|601^2|251^2|
|-----|-----|-----|-----|
The magic constant is 509020 = a(1).
.
|-----|-----|-----|-----|
|179^2|107^2|383^2|739^2|
|-----|-----|-----|-----|
|353^2|691^2|331^2|157^2|
|-----|-----|-----|-----|
|761^2|283^2|263^2| 89^2|
|-----|-----|-----|-----|
| 23^2|409^2|641^2|397^2|
|-----|-----|-----|-----|
The magic constant is 736300 = a(2).
		

Links

• The Prime Puzzles and Problems Connection, Puzzle 288
• Index entries for sequences related to magic squares

Crossrefs

Cf. A271580. Subsequence of A271582.